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12124091 = 710391667
BaseRepresentation
bin101110001111…
…111110111011
3211210222010102
4232033332323
511100432331
61111510015
7205024130
oct56177673
924728112
1012124091
116931011
12408830b
132686625
141878587
1510e74cb
hexb8ffbb

12124091 has 8 divisors (see below), whose sum is σ = 13877760. Its totient is φ = 10375848.

The previous prime is 12124081. The next prime is 12124093. The reversal of 12124091 is 19042121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-12124091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12124093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6440 + ... + 8106.

It is an arithmetic number, because the mean of its divisors is an integer number (1734720).

Almost surely, 212124091 is an apocalyptic number.

12124091 is a deficient number, since it is larger than the sum of its proper divisors (1753669).

12124091 is a wasteful number, since it uses less digits than its factorization.

12124091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12124091 is about 3481.9665420564. The cubic root of 12124091 is about 229.7293034592.

The spelling of 12124091 in words is "twelve million, one hundred twenty-four thousand, ninety-one".

Divisors: 1 7 1039 1667 7273 11669 1732013 12124091